Grain-cleaning device.



No. 783,724. PATENTED FEB. 28, 1905. J. R. HARRISON & G. I. OLEMENTS. GRAIN CLEANING DEVICE.

APPLIOATION FILED FEB. 18. 1904.

3 SHEETS-SHEET 1.

PATENTED FEB. 28, 1905. J. R. HARRISONK: G. F. GLEMBNTS.

GRAIN CLEANING DEVICE.

APPLICATION FILED FEB- 19. 1904.

3 SHEETS-BHEET 2.

No. 783,724L. PATENTED FEB. 28, 1905. J. R. HARRISON & C. F. (ELEMENTS. GRAIN CLEANING DEVIOE.

APPLIUATION TILED FEB. 18, 1904.

3 SHEETS-SHEBT 3.

Patented February 538, 1995..

i FFi tilt JAMES R. HARRISON AND CHARLES F. OLEMENTS, OF PEORIA, ILLlNOiS, ASSlGNORS TO 'illiilfl HART GRAIN \VElOl-IER COMPANY, OF PIGORIA, lliLlNOlS, A CORPORATION OF .lLL'lNOlS.

GWAIN CLEANING DEVEGE.

SPECIFICATION forming part of Letters Patent No. 783,?24, dated February 28, 1905.

Application filed FehrnarydS, 1904'. Serial No. 194,169.

To all 1.071.011). it 'I'iM'I/QI/ concern.-

Be it known that we, Janus 1t. Hamuson and Onnnnns F. Onmmn'rs, citizens of the United States, and residents of Peoria, in the county of Peoria and State oi Illinois. have jointly invented certain new and useful improvements in Grain-Cleaning Devices, of which the following is a description.

Our invention relates to a device for the pur pose named which is especially adapted to be used as the delivery-spout of a grain-weigher or similar device.

The object oi our invention is to produce a simple, reliable, and eti'ective device for the purpose stated; and to this end it consists in the novel construction, arrangement, and combination of parts herein shown and described, and more particularly pointed out in the claims.

lo the accompanying (.lrawings, wherein like reference characters indicate like or corresponding parts, Figure 1 is a partial longitudinal section of our invention in connection with portions oi a grain-elevator and a weighing device. Fig. 2 is an enlarged section oi the screen and spout, taken on line 2 2 of Fig. l. Fi 3 is an enlarged perspective view of a portion of the screen, showing the preferred form of lifting means. Fig. 4 is an enlarged longitudinal section of that portion of the spout containing the screens and shows the general arrangement oi the screens and openings for discharging the screenings. Fig. 5 is a section on line 5 5 of Fig. i. Fig. 6 is a transverse section of a modified form of the revolnble screen. Fig. 7 is a transverse section of another modified form of the revoluble screen. Fig. 8 is a side elevation of the bracket and mechanism for supporting theends of the spout and transmitting rotative power to the revoluble screen. Fig. 9 is a rear elevation of mechanism shown in Fig. 8, taken on line 9 9 of Fig. 8; and Fig. 10 is a detail view of a universal joint suitable for use in the connections for transmitting rotative power to the screen.

in the preferred form shown in the draw ings our invention constitutes the conveyorspout for grain from any desirable store. As shown, it is applied to the mitomatie wcigher of a separator of well-lcnowu coi'istruction.

In the drawings, 1 represents a conveyor-- spout having a portion oi its bottom, as 2-, foraminatcd to form a screen and below said. ioramimtted part a spout :3, which will convey the smaller seeds and dirt to a point El, where they will be dischz'wged. A discharge 4: is also provided For the material which passes down over the l'oraininated bottom. Within the spout l is positioned a rotatable screen 6, into which the grain is first delivered and which by its rotation si'zrves to so agitate the grain that the liner seeds and dirt are first sifted through the screen ii, Falling upon the foraminated bottom .2. a portion o i which material constituting the larger particles finding their way down are discharged through the openil'ig t, while the liner seeds and dirt fall through to the spout or trough 5 and are linally discharged from the opening 33. The main portion of the cleaned grain passes longitudinally onward through the rotatable screen (5 and is iinally discharged at the end of the spout l.

Any preferred means may be liilllJlUXiAl For rotating the screen 6. As shown, a bracket 7 is secured upon the elevator-log oi the weigheriri in anysuitable manner or upon some other adjacent partoi' the machi he su pportiug the shai't 9, carrying sprockelkwheels ll) ii), which are connected by a suitable SDI'OUlifill Clifl-lil with any driven part of the machine. The shaft .l is provided with a bevehgear L i, which meshes with a bcvel-gear 12, secured to the shaft 13, which at its upper end is secured to and drives a shaft extension it, provided at its upper end with a bevel-gear l5, meshing with a ringgear 16 upon the rotatable sort-ion. The one tension 1% is provided. with universal joints 17 18, which permits the extension 14: to be varied in its length and inclination as may be necessary. The extension is is :lso oi a telc scoping construction, in which one portion it) consists of a rod telescoping within a tube 20, the two being so conl'iected as to rotate together and transmit power. By this construetion the position of the tube may be varied as desiredthat is to say, both the horizontal and vertical adjustment of the free end of the tube may be accomplished without in any way interfering with the driving connection. The bracket 7 also serves as means for the support of a brace 21, which is also telescoping, one part, as 22, being a rod telescoping within a tube 23, any preferred means being employed to maintain the parts in their adjusted position. As shown, a collar 24, adjustable upon the rod 22, serves as a support for the end of the tube 23 to rest upon for this purpose. The free or outer end of the brace is secured to a band embracing the tube 1, while the inner end is secured to the bracket 7 in a manner permitting the outer end of the brace to be swung either horizontally or vertically to adjust the free end of the tube. As shown, this is accomplished by pivotally connecting the end of the rod 22 to a plate which is secured upon a companion plate attached to the bracket, permitting of rotation of one upon the other, as shown at 25 26, which permits the horizontal adjustment of the brace, while the pivotal connection of the brace to the plate 25 permits of the vertical adjust- I ment of the free end of the same.

The upper end of the tube 1 is supported,

as shown, by the hopper of the weigher in any suitable manner to permit the adjustment of the tube, as described. As shown, the hopper is provided with a head 27, which is engaged by an extension 28 of the spout extension, which latter is pivotally connected at 29 to the tube proper. The bead connection described permits the free end of the tube to be swung horizontally, while the pivotal connection at 29 permits the free end to be adjusted vertically as desired.

I prefer that provision be made in the construction of the rotatable screen 6 so that the material will be positively carried up a distance and then released, so that it will then fall back forcibly upon the screen, thereby facilitating the screening operation and preventing the caking which might take place with damp grain. Any means may be employed for this purpose, that shown being preferred. As shown in Figs. 2 and 3, the interior of the screen is provided with substantially longitudinal slats 30, preferably extending the length of the screen. It will be obvious that as the screen rotates the grain will lodge against said slats and be carried upward to a point where it will be released by the force of gravity and fall downward again upon the screen. These slats may be varied or modified as may be necessary, the particular object being to afford suitable means to secure the carrying-up operation described. As shown in Fig. 7, the screen itself by its form secures such an operation. As there shown, the inward crimped shoulder 31, extending longitudinally of the screen, serves to carry the grain up in the manner described. In theform shown in Fig. 6 the screen IS square, and while the result 1s not so pronounced as in the form shown in Figs. 5 and 7 yet in operation it has a tendency to carry the grain upward an uncertain distance and then permit it to roll or slide backward. This operation is obviously an inferior equivalent to those previously mentioned.

Suitable means may be provided for supporting the screen 6 within the tube 1 to permit of its free rotation As shown, antifriction-rollers 32 are provided at each end of the spout, upon which the screen6 is carried, the position of the screen being maintained by any suitable means. As shown, the beveled gears 15 16 serve this purpose; but the connection may be supplemented in any desired manner to prevent accidental disengagement of the parts.

After having thus described our improvement it is obvious that various immaterial modifications may be made without departing from the spirit of our invention. Hence we do not wish to be understood as limiting ourselves to the exact form and construction shown.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. In a device of the kind described, a conveyer-spout provided with a foraminated bot tom section, and a trough below said section each provided with anindependent dischargeopening, in combination with a rotatable tubular screen arranged within the spout and provided with an independent discharge, and means for rotating said screen; substantially as described.

2. In a device of the kind described, aconveyer-spout provided with a foraminated bottom section, and a trough arranged below said section, each provided with an independent discharge-port, in combination with a rotatable tubular screen arranged within the spout and provided with a discharge-opening, means for positively carrying the material within the screen upward and releasing the same permitting it to fall back upon the screen, and means for rotating said screen; substantially as described.

3. In a device of the kind described, aconveyer-spout provided with a foraminated bottom section, and a trough arranged below said section, each provided with an independent discharge-opening, said spout being pivotally supported at its upper end permitting its free end to be adjusted horizontally, in combination with a rotatable tubular screen arranged within said spout and provided with a discharge-opening, means for positively carrying the material within the screen upward and releasing the same permitting it to fall "tee 224i back upon the screen, and means for rotating said screen.

l. in a device of the kind described, a conveyer-spout provided with a foraminated bot tom section, and a trough arranged below said section, each provided with an independent discharge-opening, said spout being pivotally supported at its upper end permittingits free end to be adjusted vertically, and means for maintaining said spout in its adjusted position, in combination with a rotatable tubular screen arranged within said spout and provided with a discharge-opening, means for positively carrying the material within the screen upward and releasing the same, permitting it to fall back upon the screen, and means for rotating said screen.

in a device of the kind described, a conveyer-spout provided with a foraminated bottom section, and a trough arranged below said section, each provided with an independent discharge-opening, said spout being pivotally supported at its upper end permittingits free end to be adjusted both vertically and horizontally, and means for maintaining said spent in its adjusted position, in combination with a rotatable tubular screen arranged. within said spout and provided with a discharge opening, means for positively carrying the material within the screen upward and releasing the same, permitting it to fall back upon the screen, and means for rotating said screen.

6. .In a device of the kind described, a conveyor-spout provided with a foraminated bottom section, and a trough arranged below said section, each provided with an independent discharge-opening, said spout being pivotally sup 'iorted at its upper end permitting its free end to be adjusted both horizontally and vertically, a telescopic brace pi votally attached at one end to said spout, and pivoted both l'mrizontally and vertically, to a means of support at the other end, provided with means for maintaining the adjustment of said brace and to support the end of said spout, in combination with a rotatable tubular screen arranged within said spout and provided with a discharge-opening, means for positively carrying the material within the screen upward and releasing the same, permitting it to fall back upon the screen, and means for rotating said screen.

7. in a device of the kind described, a con veyer-spout provided with a forau'iinated bottom section, and a trough arranged below said section, each provided with an independent discharge opening, the spout being pivotally supported at its upper end permitting its free end to be adjusted both horizontally and vertically, and means for maintaining said spout in its adjusted position, in combination with a rotatable tubular screen arranged within said spout and provided on one end with a ring-gear, means for rotating said screen comprising a telescopic extension-shaft, provided with suitable flexible couplings, receiving power from a driven shaft, and a beveled pinion attached to said extension engaging the ring-gear upon said screen; substantially as described.

8. In a device of thekind described, a conveyer-spout provided with a foraminated bottom section, and a trough arranged below said section, each provided with an independent discharge-opening, said spout being pivotally supported at its upper end permitting its free end to be adjusted both horizontally and vertically,a telescopic brace pivotally attached at one end to said spout, and pivoted both horizontally and vertically, to a means of support at the other end, provided with means for maintaining the adjustment of said brace and to support the end of said spout, in combination with a rotatable tubular screen arranged within said spent and provided on one end with a ring-gear, means for rotating said screen comprising a telescopic extensionshaft, provided with suitable flexible couplings receiving power from a driven shaft, and a beveled pinion attached to said extension engaging the ring-gear upon said screen; substantially as described.

lln testimony whereof we have hereunto signed our names in the presence of two subscribing witnesses.

JAMES R. HARRISON.

CHARLES l1. ULEMENITS. l Vitnesses:

Warmer, B. Winnie, 'W. B. McLAUcuLiN. 

